LT3433EFE#PBF

Overview

The LT3433EFE#PBF is a high voltage step-up/step-down DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 2.7V to 60V and provides a regulated output current up to 1A. The device utilizes a fixed 500kHz switching frequency and integrates a power switch for efficient conversion in buck, boost, or inverting topologies. It is housed in a 16-lead TSSOP package with an exposed pad for thermal management, designed for operation across a temperature range of -40°C to +85°C.

Feature Summary

• Supports buck, boost, and inverting converter topologies within a single integrated circuit
• Wide input voltage range accommodates various power source conditions
• Integrated high-voltage power switch eliminates external component requirements
• Fixed 500kHz switching frequency enables the use of small passive components

Applications

• Automotive electronics requiring wide input voltage tolerance
• Industrial systems utilizing 24V or 48V bus architectures
• Battery-powered devices needing flexible voltage regulation
• Telecommunications equipment power distribution networks

Procurement Notes

Verify the specific suffix and package variant against official Analog Devices documentation before procurement. Confirm that the LT3433EFE#PBF designation matches the required thermal performance and pinout configuration for your design. Cross-reference the manufacturer's latest datasheet revision to ensure compliance with current electrical specifications and environmental standards.

Selection Notes

Select this component when a wide input voltage range and multiple topology options are required from a single IC. The integrated power switch simplifies board layout compared to discrete solutions. Ensure the application demands a fixed 500kHz frequency and can accommodate the thermal characteristics of the 16-lead TSSOP package under maximum load conditions.

Part Context

This part belongs to the LT3433 family of high voltage switching regulators. It is distinct from other LT34xx series parts which may offer different current ratings, switching frequencies, or package types. The EFE#PBF suffix indicates a specific lead-free tape and reel packaging option within the broader product line.

Replacement Considerations

LT3433EFE: Direct equivalent without packaging variation.